28614887 has 8 divisors (see below), whose sum is σ = 32749056. Its totient is φ = 24492312.

The previous prime is 28614853. The next prime is 28614913. The reversal of 28614887 is 78841682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28614887 - 2⁸ = 28614631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28614847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3278 + ... + 8244.

It is an arithmetic number, because the mean of its divisors is an integer number (4093632).

Almost surely, 2^28614887 is an apocalyptic number.

28614887 is a deficient number, since it is larger than the sum of its proper divisors (4134169).

28614887 is an equidigital number, since it uses as much as digits as its factorization.

28614887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5797.

The product of its digits is 172032, while the sum is 44.

The square root of 28614887 is about 5349.2884573558. The cubic root of 28614887 is about 305.8656301269.

The spelling of 28614887 in words is "twenty-eight million, six hundred fourteen thousand, eight hundred eighty-seven".